Commit 507b1b28 authored by Michael Kao's avatar Michael Kao Committed by Matthias Brugger
Browse files

arm64: dts: mt8183-kukui: Add tboard thermal zones 



Add tboard thermal zones.
The tboard thermal sensors are a kind of NTC sensors which are located
on PCB board to correlate the temperature of the case (Tskin).

pull-up voltage: 1800 mv
pull-up resistor: 75K

Vsense = pull-up voltage * Rntc / ( pull-up resistor + Rntc )
AuxIn = Vsense * 4096 / 1500

Signed-off-by: default avatarMichael Kao <michael.kao@mediatek.com>
Signed-off-by: default avatarBen Tseng <ben.tseng@mediatek.com>
Tested-by: default avatarHsin-Yi Wang <hsinyi@chromium.org>

Link: https://lore.kernel.org/r/20210604093755.13288-1-ben.tseng@mediatek.com


Signed-off-by: default avatarMatthias Brugger <matthias.bgg@gmail.com>
parent 4fa8492d

arch/arm64/boot/dts/mediatek/mt8183-kukui.dtsi

+14 −0
Original line number Diff line number Diff line
@@ -851,6 +851,20 @@ 
	status = "okay";

};



&thermal_zones {

	tboard1 {

		polling-delay = <1000>; /* milliseconds */

		polling-delay-passive = <0>; /* milliseconds */

		thermal-sensors = <&tboard_thermistor1>;

	};



	tboard2 {

		polling-delay = <1000>; /* milliseconds */

		polling-delay-passive = <0>; /* milliseconds */

		thermal-sensors = <&tboard_thermistor2>;

	};

};



&u3phy {

	status = "okay";

};

arch/arm64/boot/dts/mediatek/mt8183.dtsi

+1 −1
Original line number Diff line number Diff line
@@ -673,7 +673,7 @@ 
			nvmem-cell-names = "calibration-data";

		};



		thermal-zones {

		thermal_zones: thermal-zones {

			cpu_thermal: cpu_thermal {

				polling-delay-passive = <100>;

				polling-delay = <500>;